| Acronym | Meaning |
| CREB | CAMP-responsive Element-binding |
| UCEPA | Unitary Coupled Electron Pair Approximation |
| XMCD | X-ray Magnetic Circular Dichroism |
| BMV | Berthier-Millie-Veillard Method (semiempirical MO-SCF) |
| GEOSECS | Geochemical Ocean Sections |
| LWR | Light-water Reactor |
| NSLS | National Synchrotron Light Source |
| RBCOD | Readily Biodegradable Chemical Oxygen Demand |
| LCAO LSD | Linear Combination Of Atomic Orbitals-local Spin Density |
| SOTE | Standard Oxygen Transfer Efficiency (of Aeration Diffusers) |